-91.37% is the change from 394 to 34
Calculation steps:
[( 34 - 394 ) ÷ 394] x 100 = -91.37%
Formula
Percentage change = [(34 - 394) / 394] x 100
Subtract the new number by the original number
34 - 394 = -360
-360 ÷ 394 = -0.9137055837563451
-0.9137055837563451 x 100 = -91.37%